One of the most common questions we hear from librarians is “How does Google decide what result goes at the top of the list?” Here, from quality engineer Matt Cutts, is a quick primer on how we crawl and index the web and then rank search results. Matt also suggests exercises school librarians can do to help students.

Crawling and Indexing

A lot of things have to happen before you see a web page containing your Google search results. Our first step is to crawl and index the billions of pages of the World Wide Web.

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